Let

be a rectangular

matrix with column vectors

, i.e.

Then we have

and the product of the two is

Because the columns of

are orthonormal, we have

which means

reduces to an

matrix with ones along the diagonal and zero everywhere else, i.e.

where

denotes the identity matrix. This means the solution to

is given by
There are two scales that may be possible for this scale model; one where it's for every foot and one where it's for every meter.
The for every foot would be better to find out since the scale would be easier to use.
First, you have to divide each sided by 4.2, since you want to find how many meters for each foot.

For every 1 foot used in the model, the actual will be 125 meters.
1 ft = 125 m
Answer:
first one im pretty sure
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
X=(18.75*100)/75
Answer:
90 in
Step-by-step explanation:
15 x 6 = 90 in
This is because
6 x 12 hrs = 3 days